Accelerator for automobiles.



L B. BOWMAN. ACCELERATOR FOB. AUTOMOBILES.

APPLICATION FILED JUNE 23, 1914.

Patented Mar. 23, 1915.-

'ESSES. w y INVENTOR;

' (/54/7 E, Ban M01).

ATTORNEY.

J ED srarss ATENT orrrcn JOHN E. BOWMAN,.OF SYRACUSE, NEW YORK.

ACCELERATOR FOR AUTOMOBILES.

maaeot.

Specification of Letters Patent.

Application filed June 23,1914. Serial 110, 846,765.. I

' To all whom it may go g tor for controlling the throttle of automobile engines, the, saidmechanism arranged to cooperate with the hand-controlled throttling mechanism. And a further ob-. ject is to generally improve, simplifyand cheapen mechanisms of the class. I attain these objects by the means described hereinafter, illustrated by the accompanying drawing, and then .pointedout by. the appended claim;-

Figure 1 is a view of the rear sideof the dash of an automobile which supports certain parts of the invention. Fig. 2-.is a vertical longitudinal section through the same. Fig. 3 is a top planview of the accelerating v mechanism. F ig.. 4 is a detail perspective viewof the transversegrod in connection with a part of the hand-controlled mechanism. I In the drawing, 2 represents the dash of an automobile which has. a'central openin 3, (see dotted lines Fig l.) V

' 4 represents the inclining removable floor or bottom of the car disposed immediately rearwardly of the dash.

The opening 3 is closed by a metal plate 5, secured by screws 6,to which the pedal of] my foot-accelerator is pivotally attached by lugs'or bearings 7. The pedal consists of an arm 8 which overhangs the floor {1, and is integral with one end of a horizontal shaftportion 9, which is journaled in the bearings 7 From the other end of shaft 9 depends an arm 10 the lower end of which is perforated to receive one end of a forwardly extending rod 11, the .said perforations being provided for varying the leverage or throw of the said rod when the pedal is depressed. The forward end of the rod 11 connects with an arm 12 of a bell-crank which is pivoted to the top of a post or stud lathe lower end of saidpost being threaded .into the flange of the base of-the engine 15.

16 represents carbureter, which is located at the oppositeside'of the engine from- Patented Mar. 23, 1915;

the"pos t-';13,Tand 17 represents the throttle I which is controlled by a lever 18; 119 represents .a transverserod the opposite endsof which connect respectively with the lever '18 and an arm 20 of thebell-crank, the said rod passing through an opening 21 arra gqd between' the middle cylindersof I the engine. The rod 19 carries a-rigid. stop 22 disposed intermediate its ends, which is engagedby the looped-end 23 of a" rod- 24 comprising a part otthe usual .hand-c'on-" trol for-the-thnottle. [The oppositeend of. rod 24connectswith a'crank-lug 25 carried" by a. rod 26,.one, end of said rod having a handle27,1which is disposed'near the upper end of thefsteering .column 28, generally directly beneath the steering wheel (not shown). The'r rod26 parallels the column 28, and is journaled in a lug' 29, carried by said column. I

g 30 represents a spring, one end of which connects with ,the 3 rod "11, while }"the other end thereofconnects with the front side of the" dash 2. The spring 30 normally' exerts its-tension for lfoldingthefthrottle closed, as"

shown by the full linesin Fig. 3.

a The operation of .my accelerator is asv f0l- 31 in Fig- By the turning of handle 27 lows: To start the engine the operator manipulates thelhandle 27 for opening the I v throttle part-way (seedotted line positions erated position. Thereafter, whenever it is desired or. necessary to open the throttle to a greater extent, the operator utilizes the pedal 8, which, he may depress for moving the bell-crank, rod 19 and lever 18,-:to the further open position, as' shown by the dotted lines 32 in Fig. 3. During the run ning of the car the pedal 8 is to be used for varying the throttle between the extremes indicated by the said dotted positions 31 and 32, thus leavin'g'the operators hands free for manipulating the other controlling parts. Finally, to close the throttle entirely, the hand-lever 27' isoperated in the reverse direction and the foot is removed. from the pedal, for allowing the spring 30.

to close the throttle entirely, as well as to restore all of the accelerator parts to the full line position shown in Fig. 3.

The adaptation of my improvement to the Well-known Ford and similar automobiles is very readily and cheaply accomplished. The plate 5 takes the place of a similar plate carried by all such cars, and enables me to install the accelerator to the rigid dash, in-

stead of the removable floor, as 4, where it.

would have to be frequently disconnected, removed and replaced, for allowing access to the mid-interior of the car. And furthermore the provision of the post 13, also saves time and labor, as the said post replaces one of the bolts, as 33, which are usually employed for anchoring the engine to the chassis. The said post when screwed into the shoulder 34 answers the purpose of the displaced bolt and also affords a strong, firm and convenient support for the bell-crank and related parts.

rod independently of said loop.

In testimony whereof I atlix my signature in presence of two witnesses.

JOHN E. BOVMAN. 'Witnes'ses HARRY DE l/VALLACE, E. C. WRIGHT. 

